DS232AS-N+

Drivers, Receivers, Transceivers Overview

The DS232AS-N+ is a dual RS-232 driver/receiver transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +5V power supply, utilizing internal charge pumps to generate ±10V levels compliant with EIA-232E and V.28 standards. The device features two drivers and two receivers in a 16-pin SOIC (300-mil) package. Key electrical parameters include a maximum data rate of 250 kbits/sec under load, a typical power supply current of 10 mA at no load, and an operating voltage range of 4.5V to 5.5V. It supports standard TTL/CMOS inputs and outputs.

Drivers, Receivers, Transceivers Feature Summary

• Generates RS-232 voltage levels from a single +5V supply using on-board dual charge pump converters.
• Fully compliant with EIA-232E and V.28/V.24 communication interface specifications.
• Operates with small external capacitors as low as 0.1 μF for charge pump functionality.
• Includes receiver hysteresis to improve noise immunity and signal integrity.

Drivers, Receivers, Transceivers Applications

• Serial communication interfaces requiring EIA-232E compliance.
• Systems connecting microprocessors or DSPs to RS-232 peripherals.
• Industrial control applications within the specified temperature range.

Drivers, Receivers, Transceivers Procurement Notes

Verify the component authenticity through authorized distributors or manufacturer channels. Confirm the specific suffix 'N' indicates the industrial temperature grade (-40°C to +85°C) and 'S' denotes the 16-pin SOIC (300-mil) package. Ensure the ordering information matches the required package dimensions and thermal characteristics for your design.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a dual RS-232 transceiver is needed with a single +5V supply constraint. It is suitable for designs requiring compatibility with MAX232A pinouts but needing industrial temperature ratings. Consider the 16-pin SOIC footprint constraints and the requirement for four 0.1 μF external capacitors for the charge pumps during PCB layout.

Drivers, Receivers, Transceivers Part Context

The DS232A series includes variants such as the DS232AR (SOIC 150-mil), DS232AE (TSSOP), and their industrial temperature counterparts marked with '-N'. The DS232AS-N+ specifically refers to the industrial grade version in the wider 16-pin SOIC package. This part is functionally compatible with the LT1181A and MAX232A devices.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet explicitly states compatibility with the LT1181A and MAX232A. These parts may serve as functional substitutes if pinout and electrical specifications align with the system requirements.